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dimulka [17.4K]
2 years ago
15

What is the domain of the function showing in the graph below? part 1

Mathematics
2 answers:
Llana [10]2 years ago
7 0

Answer:

domain is x ∈ (- ∞, + ∞ )

Step-by-step explanation:

The graph shows

as y → - ∞ , x → - ∞

as y → + ∞ x → + ∞

The domain is therefore real for all values of x

domain is x ∈ (- ∞, + ∞ )

algol132 years ago
5 0

Answer:

  (-5, 2)

Step-by-step explanation:

Often, an arrow at the end of a graph indicates the graph extends to infinity in both the x- and y-directions. However, when the graph has a vertical asymptote at each end of its domain, it would have an arrow pointing upward, but not sideways.

<em>It is difficult to tell from this graph</em> what the intention is. It appears that there may be vertical asymptotes at x = -5 and at x = 2. If that is the case, then the domain is restricted to the interval ...

 -5 < x < 2

  (-5, 2) in interval notation

_____

The attachment is an example of a function that might give rise to a graph like this.

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Write a system of equations that could be used to solve the situation described below.
attashe74 [19]

If there are 12 coins under the couch and every coin is either a nickel or a penny and together they are forming 32 cents then the equations which represent the problem will be x+y=12, 0.01x+0.05y=0.32. The correct option is B which is x+y=12, 0.01x+0.05y=0.32.

Given There are 12 coins and total money is 32 cents.

Let the number of pennies be x and the number of  nickels be y.

According to question there are 12 coins so the first equation becomes:

x+y=12.

Then we have been told that together they amount to 32 cents.

We know that 1 penny is 1 cent coin and 1 nickel is 5 cent coin so the equation becomes :

1*x+5*x=32

x+5y=32

converting into dollar

0.01x+0.05y=0.32.

Hence the right equations showing the problem of nickel and pennies are x+y=12, 0.01x+0.05y=0.32.

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3 0
1 year ago
A commuter has $245 in his commuter savings account. This account
tino4ka555 [31]
I’m not 100% sure but probably 16 weeks
8 0
3 years ago
Translate the phrase into an algebraic expression.<br><br> 3 more than y
Furkat [3]
<span>3 more than y
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y + 3

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a researcher found that a cigarette smoker smokes on average 31 cigarettes a day. she feels that this average is too high. she s
Ivenika [448]

At 0.01 significance level the hypothesis is rejected.

Null Hypothesis (H₀): The sample data occurs purely from chance.

Alternative Hypothesis (H₁): The sample data is influenced by some non-random cause.

If the p-value of the hypothesis test is less than some significance level (e.g. α = .01), then we can reject the null hypothesis and conclude that we have sufficient evidence to say that the alternative hypothesis is true.

Given that,

x = 28

s = 2.9

μ = 31

n = 8

α = 0.01

Then, the Null Hypothesis : H₀ = 31

          The Alternate Hypothesis : H₁ < 31

The average number of cigeratte smoker  per day is less than 31.

Test Statistics:

t = x -μ / s√n

   = 28 - 31/ 2.9√8

   = -3/ 8.41

   = -0.356

Since the p-value of 0.0046 is less than the significance level of 0.01, the auditor rejects the null hypothesis.

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4 0
1 year ago
A line passes through the points (-5, 2) and (10,-1). Which is the equation of the line?
Leno4ka [110]
The answer is A : y=-1/5x+1 ..... I checked on desmos
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3 years ago
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